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Fish-delousing underwater laser (2018) [video]

igorkraw

In the beginning of the PhD, to help with rent I contracted to help develop computer vision algorithms in this field, only PoCs, never got very far.

And interesting thing is that the lice apparently evolve super fast, including getting translucent and resistant against poison

globalise83

That's interesting! They might also evolve a tendency towards moving to the left flank of the fish.

internet_points

Lice are a huge problem. If this solution works, it must not be implemented that widely. The news is full of solutions like physical washing, thermic treatment (basically hot baths), loads of chemicals, also huge amounts of chlorine poured into surrounding rivers because the fish escape the farms and spread lice. The lice are really adaptive. There are more and more lice due to higher sea temperatures[0] and increased resistance to treatments.

[0] https://www-nrk-no.translate.goog/nordland/hoye-temperaturer...

xeonmc

Can they be mounted on sharks?

jniles

I would love to see more data on this. Their site makes some bold claims, but it is hard to know how to quantify the effectiveness of the laser treatment, How many units do you need per X fish? After how many hours/ days/ weeks does it take to reduce the parasites to X levels?

Not critiquing the technology, just hard to visualize as someone with no knowledge or experience in the field.

walterbell

Only available in Norway, https://www.stingray.no/delousing-with-laser/?lang=en

> technology combines stereo machine vision, advanced software and high-precision laser to target and kill parasites that infect farmed fish.

Grosvenor

This is exactly the sort of thing I got into tech for. Real world, no bullshit solutions to problems.

I love it.

chriscjcj

What are the falling pellets?

dvh

It concentrates fish on one spot

nomilk

Title was a little confusing; Stringray is just the name of the laser, which is being used to remove sea lice from salmon. Very cool.

dang

Stingray removed from the title above. Thanks!